Make image links open in new window

how is this done? My client claims she used to be able to do it (I can’t remember to be honest) and now she can’t. There’s no option in the image editor within Nivo Slider. Is there any way to do it or can anyone point me in the direction of a core file that can be edited to achieve this as it’s very important.

I managed to get it working taking your lead above. The code is slightly different in the version of nivo slider I have but it works.

It’s not the ideal solution but definitely working for time being. Hoping the developer can add in the choice of open in new window when adding the links in the admin as not all links will be wanted to be a new window. For example some of our slides link to internal pages on our site (so should not be new window) but some are to other peoples sites (so should be new window).